Cost Per Mille

Also called CPM and Cost Per Thousand

Cost per mille: the cost to show your ad one thousand times, the standard price unit for impression-based advertising.

CPM = (ad spend / impressions) x 1000

Why it matters

CPM is how brand and awareness campaigns are priced. Rising CPMs across a platform signal more competition for the same eyeballs, squeezing everyone's acquisition math.

For example

A brand campaign pays 300 rupees CPM, so reaching 1,00,000 people costs 30,000 rupees.

Related terms

Cost Per Click Click-Through Rate Brand Awareness

Go deeper

See how founders actually handle this on Money, pricing and metrics, part of the Starting Up hub.

eChai Partner Brands